RSSS Research Solutions, Inc.
Research Solutions, Inc. (RSSS) Institutional Ownership
What the institutions did with RSSS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeLargest holders
| Manager | Shares | % of reported |
|---|---|---|
| NEEDHAM INVESTMENT MANAGEMENT LLC | 3.2M | 28.8% |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 2.6M | 23.3% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1.1M | 10.5% |
| Luxor Capital Group, LP | 652.0K | 6.0% |
| BARD ASSOCIATES INC | 609.0K | 5.6% |
| PARTHENON LLC | 392.3K | 3.6% |
| Dynamic Advisor Solutions LLC | 365.6K | 3.3% |
| North Star Investment Management Corp. | 357.0K | 3.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 295.1K | 2.7% |
| Navalign, LLC | 196.1K | 1.8% |
| VANGUARD FIDUCIARY TRUST CO | 173.9K | 1.6% |
| LPL Financial LLC | 146.3K | 1.3% |
| BlackRock, Inc. | 143.3K | 1.3% |
| RENAISSANCE TECHNOLOGIES LLC | 106.0K | 1.0% |
| 4Thought Financial Group Inc. | 83.4K | 0.8% |
| DIMENSIONAL FUND ADVISORS LP | 82.4K | 0.8% |
| Integrated Quantitative Investments LLC | 72.5K | 0.7% |
| NORTHERN TRUST CORP | 61.0K | 0.6% |
| STATE STREET CORP | 58.8K | 0.5% |
| Rothschild Wealth LLC | 51.3K | 0.5% |
| GOLDMAN SACHS GROUP INC | 44.0K | 0.4% |
| Greenhaven Road Investment Management, L.P. | 38.5K | 0.4% |
| KING LUTHER CAPITAL MANAGEMENT CORP | 35.0K | 0.3% |
| ACADIAN ASSET MANAGEMENT LLC | 29.0K | 0.3% |
| CITADEL ADVISORS LLC | 28.0K | 0.3% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Topline Capital Management, LLC | Reduced | 461.2K | 11.4K | -449.7K |
| Hillsdale Investment Management Inc. | Sold Out | 86.0K | 0 | -86.0K |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | 176.9K | 106.0K | -70.9K |
| Navalign, LLC | Reduced | 251.1K | 196.1K | -55.0K |
| Dynamic Advisor Solutions LLC | Increased | 317.7K | 365.6K | +47.9K |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 335.2K | 295.1K | -40.1K |
| ACADIAN ASSET MANAGEMENT LLC | Reduced | 65.8K | 29.0K | -36.9K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 34.9K | 0 | -34.9K |
| NewEdge Advisors, LLC | New | 0 | 25.9K | +25.9K |
| North Star Investment Management Corp. | Increased | 333.5K | 357.0K | +23.5K |
| BlackRock, Inc. | Increased | 120.2K | 143.3K | +23.1K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 151.4K | 173.9K | +22.5K |
| BOOTHBAY FUND MANAGEMENT, LLC | Sold Out | 16.3K | 0 | -16.3K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1.1M | 1.1M | +13.5K |
| XTX Topco Ltd | Sold Out | 12.7K | 0 | -12.7K |
| STIFEL FINANCIAL CORP | Sold Out | 11.0K | 0 | -11.0K |
| CITADEL ADVISORS LLC | Reduced | 35.7K | 28.0K | -7.7K |
| Financial Management Professionals, Inc. | Sold Out | 5.4K | 0 | -5.4K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 78.0K | 82.4K | +4.5K |
| NORTHERN TRUST CORP | Increased | 56.6K | 61.0K | +4.4K |
| Tower Research Capital LLC (TRC) | Increased | 1.3K | 4.7K | +3.5K |
| UBS Group AG | Increased | 3.7K | 6.6K | +2.9K |
| GOLDMAN SACHS GROUP INC | Reduced | 46.6K | 44.0K | -2.6K |
| BARD ASSOCIATES INC | Increased | 608.4K | 609.0K | +577 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO | New | 0 | 500 | +500 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.